Table 2.
Effect of CA extract and BHT on instrumental colour value (L*, a*, b*) of beef patties during 10 days of refrigerated storage at 4 °C. (Mean ± SE).
| Assay | Sample | Days of Storages | |||||
|---|---|---|---|---|---|---|---|
| 0 | 2 | 4 | 6 | 8 | 10 | ||
| L* | Control | 38.68 ± 0.87 a,1 | 38.68 ± 1.50 a,1 | 37.89 ± 0.32 b,3 | 37.10 ± 1.23 b,2 | 36.23 ± 0.45 c,2 | 35.61 ± 2.22 d,1 |
| 0.1% BHT | 38.68 ± 0.87 a,1 | 39.06 ± 1.08 b,2 | 38.25 ± 0.97 a,2 | 38.43 ± 1.06 a,1 | 37.09 ± 1.19 c,1 | 36.18 ± 0.46 c,2 | |
| 0.1% CA | 38.68 ± 0.87 a,1 | 38.60 ± 1.05 a,1 | 39.26 ± 1.46 b,1 | 38.63 ± 0.55 a,1 | 37.11 ± 1.02 c,1 | 37.06 ± 1.22 c,3 | |
| 0.3 % CA | 38.68 ± 0.87 a,1 | 39.94 ± 0.71 b,2 | 39.79 ± 1.23 b,1 | 38.25 ± 1.40 a,1 | 38.91 ± 1.47 a,3 | 38.84 ± 1.13 a,4 | |
| a* | Control | 7.49 ± 0.27 a,1 | 7.77 ± 0.29 a,1 | 6.54 ± 0.33 b,1 | 6.27 ± 0.16 b,2 | 4.71 ± 0.02 c,1 | 2.09 ± 0.01 d,1 |
| 0.1% BHT | 7.49 ± 0.27 a,1 | 8.18 ± 0.42 b,2 | 9.28 ± 0.28 c,2 | 7.05 ± 0.31 a,1 | 6.36 ± 0.37 d,2 | 2.87 ± 0.01 e,1 | |
| 0.1% CA | 7.49 ± 0.27 a,1 | 7.61 ± 0.33 a,1 | 5.57 ± 0.26 b,3 | 6.25 ± 0.19 c,2 | 6.60 ± 0.33 c,2 | 3.31 ± 0.02 d,2 | |
| 0.3 % CA | 7.49 ± 0.27 a,1 | 7.64 ± 0.21 a,1 | 7.20 ± 0.47 a,4 | 7.50 ± 0.20 a,1 | 7.61 ± 0.37 a,3 | 4.08 ± 0.01 b,3 | |
| b* | Control | 7.42 ± 0.32 a,1 | 4.86 ± 0.01 b,1 | 7.68 ± 0.36 a,1 | 8.55 ± 0.19 c,1 | 9.95 ± 0.21 d,1 | 6.77 ± 0.02 e,1 |
| 0.1% BHT | 7.42 ± 0.32 a,1 | 6.68 ± 0.16 b,2 | 8.40 ± 0.27 c,1 | 8.39 ± 0.37 c,1 | 8.38 ± 0.24 c,2 | 6.10 ± 0.01 d,1 | |
| 0.1% CA | 7.42 ± 0.32 a,1 | 8.00 ± 0.37 b,3 | 8.19 ± 0.33 b,1 | 5.17 ± 0.13 c,2 | 7.49 ± 0.07 a,3 | 4.35 ± 0.09 d,2 | |
| 0.3 % CA | 7.42 ± 0.32 a,1 | 7.14 ± 0.49 a,4 | 7.59 ± 0.29 a,2 | 7.01 ± 0.21 a,3 | 7.99 ± 0.27 a,3 | 3.25 ± 0.01 b,3 | |
Control: 1.5% salt (w/w); 0.1% BHT: 1.5% salt with 0.1% BHT (w/w); 0.1% CA: 1.5% salt with 0.1% CA (w/w) 0.3% CA: 1.5% salt with 0.3% CA (w/w). a–d: Means within a row with different letters are significantly different (p < 0.05). 1–4: For each attribute, means within a column with different number are significantly different (p < 0.05). Mean value n = 6 and the standard deviation for each assay is less than 5%.